E cigarettes might harm lung tissue much like regular cigarettes do whether they contain nicotine or not a new study says. Where There's Vapor, Is There Fire? We Need Evidence on E Cigarettes RAND How E Cigarettes Affect Your Body NIH funded studies show damaging effects of vaping, smoking on blood vessels National Institutes of Health (NIH) How E Cigarettes Affect Your Lungs: Results of an Online Survey of Users E Cigarette Direct